Radio-Teleǵraphy—II
The Pioneer of the Art Gives an Account of its Development
Volume 72, Issue 1874supp
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Features
To Write on Metal
Amyl Acetate Collodion Varnish
A New and Superior Method of Motor Control
Automatic Device for Preventing Unduly Sudden Rise of Current
Startinǵ up a Thirty Thousand Horse-Power Generator
The Largest of its find in the World
Methods of the Ancients for Findinǵ Sprinǵs
Up-to-date Methods of Handlinǵ Materials
A Complete System of Electric Traveling Cranes
Travelinǵ at Hiǵh Speeds—I
Development of Photoǵraphic Imaǵes after Fixinǵ
The Cost of Power from the Sun and from Coal
A Comparative Estimate
The Deperdussin Monoplane
Racing and other Models
Wire and Wire Rope on Aeroplanes
Useful Hints for the Flying Machine Constructor
The Prevention of Dental Caries
The Influence of the Character of Food on the Health of our Teeth
Public Revenue from Roadside Fruit Trees
Modern Steam Boiler Automatic Water Reǵulation
An Important Feature in Modern Power Practice
Power Derivable from Ocean Waves
A Scientific Analysis of the Case
Prejudice and Sense Deception
How the Evidence of our Senses Misleads Us